Lubricator.



No. 792,253- PATENTED JUNE 13, 1905. P. O. FA-RWELL.

LUBRIGATOR.

APPLIUATIOH FILED OOT. l7 190.4.

NITED STATES Patented June 13, 1905.

FAY O. FARW'ELL, OF DUBUQUE, IOIVA, ASSIGNOR OF ONE-HALF TO THE ADAMSCOMPANY, OF DUBUQUE, IOWA, A CORPORATION OF IOIVA.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 792,253, dated June 13,1905.

Application filed October 17, 1904. Serial No. 228,759.

To all whom it may concern:

Be it known that I, FAY O. FARWELL, a citizen of the United States,residing in the city and county of Dubuque, State of Iowa, have inventedcertain new and useful Improvements in Lubricators; and I do herebydeclare the following to be afull, clear, and exact description of theinvention, such as Will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to lubricators, and has for its object to provide adevice for distributing oil or the like to several points, such as thebearings of an engine, said device being so constructed and arranged asto have a positive action without the use of valves and springs that areliable to break or stick or fail to operate.

The apparatus is particularly designed 'to distribute very heavy oils,such as the high fire-test oils used for the cylinder lubrication ofsteam and gasolene engines, and is so arranged as to be unafiected byvibration incident to its use on automobiles and the like, on which saidengines are generally employed.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a perspective view of the lubricating device. Fig. 2 is alongitudinal section thereof. Fig. 3 is a transverse section on line 33, Fig. 2. Fig. 4 is a perspective view of the inner barrel, carryingthe cylinders and plungers. Fig. 5 is a perspective view of theoperating-cams for the plungers.

In the drawings, a is a casing, preferably cast as a cylinder, with aremovable end 7), which may be secured to the casing by means of screwsor other suitable devices. The inside of the casing is finished with atrue cylindrical bore with a smaller central opening in the upper endand provided on the same end with a projection 0, forming part of thestuding-box to prevent the oil escaping. IVithin the casing is mounted aframe or barrel 9, which fits snugly within the cylindrical bore, but isof somewhat shorter length than the bore, two bosses or projections onthe respective ends of the barrel serving to space the samelongitudinally in the casing. The upper end of the barrel is providedwith a stem 0, which projects through the central opening in the caseand passing through the stufling-box is fitted at its upper end with aratchetwheel, by means of which the barrel is rotated. Within the barrelt are secured a series of longitudinal chambers or cylinders h, whichare preferably made of a relatively large diameter for a greater part oftheir length and of a smaller diameter for a short distance at theirupper portions. Vithin each chamber 72, there is mounted forreciprocatory motion a piston in, having a rod or stem 2 projecting upthrough said cylinder and guided in the smaller upper portion thereof,so that the piston and its rod have a neat moving fit in the larger andsmaller bores of the cylinders. These pistons and their operating-rodsconstitute plungers, which are made slightly longer than the part of thebarrel through which they pass, but are shorter than the length of thecylindrical bore in the casing g, which permits an independentlongitudinal movement of the plungers for the purpose hereinafterdescribed.

Drilled in the periphery of the barrel g are a series of openings 1 2 34, each communicating with one of the cylinders h by means of a shortnipple or pipe-section y'. In one side of the casing a is a groove orchannel 6, which is of suflicient length to communicate with each of theholes in the barrel above referred to, the said holes being arranged inthe barrel on different longitudinal lines and at different levels, asshown in Fig 2, so that the several holes are in stepped relation aroundthe periphery of the cylinder. On the outside of the casing a is a boss(Z, which is adapted to receive a pipe to conduct the oil or the likefrom a tank or reservoir to the channel 6. At another point in thecircumference of the easing 9 is a row of holes 1' 2 3 L, which areadapted to register with the holes 1 2 3 4: in the barrel. Secured inthe holes 1 2 3' 4:,

respectively, by means of screw-sleeves or other suitable attachingdevices are tubes j, which are adapted to be led to the points to whichoil or the like is to be delivered.

Secured in the top of the casing in line with the travel of the smallend of the plungers is a block or cam m, set in such position that itwill push the plunger downward just as the hole communicating with thecorresponding cylinder is passing the inlet-groove c. F astened to thebottom of the casing a and in line with the travel of the larger endsZcof the plungers is a second cam a, which is adapted to push theplungers up as they succes sively pass the outlet-holes l 2 3 at.

Journaled on the stem 0 of the barrel and the boss 0 of the casing aratchet-lever q, upon which is mounted a fixed stud 9', carrying aratchet s, pivoted to the top thereof, which is normally held inengagement with the teeth of the ratchet-wheel p by means of a spiralspring f, all so constructed that as the ratchet-lever is oscillated thestem 0 has imparted thereto a rotatory motion.

The operation of the device as above described is as follows: The barrelg is revolved in the proper direction by the ratchet mechanism abovedescribed or by any other suitable means, which maybe actuated from somemoving part of the engine or other mechanism to be lubricated. As eachcylinder in the barrel approaches the side of the case in which theinlet-groove c is located the small end I of the plunger strikes the camm, which pushes the plunger down, and a quantity of oil or other liquidis drawn into the cylinder through the hole in the side thereof. As thebarrel continues its rotatory movement the hole in the cylinder passesout of registry with the groove 6 and will be closed by the innersurface of the casing a, thereby pocketing the oil contained in thecylinder. When. the barrel has moved sufficiently to bring the cylindercontaining the oil in juxtaposition to the series of holes 1 2 3 a, thelower end of the plunger in the cylinder strikes the lower cam 72 andforces the plunger up, and as the hole in the cylinder comes intoregistry with its mating hole in the casing a the oil is forced out ofthe cylinder and by way of the corresponding pipe to the part to belubricated. This operation is taken up by each of the cylinders h insuccession, each cylinder taking in a supply of oil while itsinlet-orifice is in registry with the groove 0 and its plunger isdepressed, carrying the pocketed oil around until the orilice inits sidecomes in registry with the mating hole or oriflee in the casing and thendischarging the contained oil into the appropriate pipe by the upwardmovement of its plunger.

In the accompanying drawings a lubricator has been shown for supplyingfour conducting-pipes, leading to as many different parts to belubricated. It is to be understood, however, that the same apparatus towit, a bar rel containing four pumps or plungerscould be made to deliveroil to eight or twelve tubes by having two or three inlet-grooves r: atdifferent points on the circumference of the easceases ing, with aseries of discharge-tubes between each pair of inlet-grooves andcam-blocks to impart two or three complete reciprocations to eachplunger in its rotation. It will also be understood that two or moreplungers might deliver oil to one discharge-tube, if desired to havesome tubes deliver more oil than others. Furthermore, the invention isnotlirnited to any particular number of pumps or plungers anddelivery-tubes. For example, there may be arranged two concentric rowsof plungers, each row consisting of three or more plungers, the innerrow being adapted to draw oil from one source by way of one inlet-grooveand the outer row of plungers drawing oil from another supply by way ofa separate inlet-groove, each series of plungers having of course theirseparate outlets. \Vith this arrangement it would be possible to connectthe inlets with tanks containing different grades of oil, and the oildelivered from one series of discharge-tubes would be of one grade,while that delivered from the other series of tubes would be of adifferent grade, so that the apparatus could be used with advantage tolubricate machinery which requires different kinds of oil on differentbearings.

hat I claim as my invention is- 1. An automatic lubricating device,comprising a cylindrical easing having inlet and outlet ports, arotatory frame in said casing, and a series of reciprocating pumps insaid frame operated by the revolution of the latter, each pump having anorifice adapted to register alternately with the inlet and outlet ports.

2. An automatic lubricating device, comprising a cylindrical casinghaving inlet and outlet ports, the latter being arranged at differentlevels in the casing side, a rotatory frame in said casing, and a seriesof reciprw eating pumps in said frame operated by the revolution of thelatter, each pump having an orifice adapted to register alternately withthe inlet and one of the outlet ports.

3. An automatic lubricating device, comprising a cylindrical casinghaving inlet and outlet ports, the latter being arranged at differentlevels in the casing, a rotatory barrel or frame in close peripheralengagement with' the interior of the casing, a series of longitudinalcylinders in said barrel, each having a discharge-orifice openingthrough the side of the barrel and adapted to .be brought alternatelyinto registry with the inlet and one of the outlet ports, and meanscooperating with said plungers to reciprocate the same as the barrel isrotated. 4. An automatic lubricating device, comprising a cylindricalcasing having a longitudinal inlet-port and a series of outlet-ports,the latter being disposed at different heights in the casing side, arotatory barrel in close peripheral engagement with the interior of thecasing, a series of longitudinal cylinders in said barrel, each having apassage-Way connecting its interior With the exterior of the barrel,each passage-Way adapted to register alternately With the inlet-port andone of the outlet-ports, plungers in said cylinders, and means forreciprocating said plungers as the barrel is rotated.

5. An automatic lubricating device, comprising a cylindrical casinghaving a longitudinal inlet-port and a series of outlet-ports, thelatter being disposed at different heights in the casing side, arotatory barrel in close peripheral engagement with the interior of thecasing, a series of longitudinal cylinders in said barrel, each having apassage-Way connecting its interior with the exterior of the barrel,each passage-Way adapted to register alternately With the inlet-port andone of the outlet-ports, plungers in said cylinders, cams on the casingto reciprocate the plungers, and means for imparting rotatory movementto said barrel.

In testimony whereof I afiix my signature in presence of tWo Witnesses.

FAY O. FARWELL. WVitnesses:

FLOYDVA. OATEY, OOURTLAND L. BUTLER.

